Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
02/01/1998 | 0000 | 02/28/1998 | 2359 | Does not affect quality |
Subject: | Overview of Automated QA - February 1998 |
DataStreams: | sgp05okmX1.00, sgp15okmX1.00, sgp15okmX1.a1, sgp05okmX1.a1 |
Description: | Below is an overview from Mark Shafer of the automated quality assurance results for the February 1998 Oklahoma Mesonet data. February was a pretty well-behaved month. The only alterations to the qa flags I would suggest are: 1. BUTL PRES - indicated errors on the first and flagged as warning (2) on March 17. No other errors were noted during February, but it warrants taking a close look at the data. 2. SPEN BATV - flagged as suspect from the 6th through 13th. Low battery voltage may affect the performance of other sensors, so all data should be used with caution for this site during the seven-day period. OKLAHOMA MESONETWORK QUALITY ASSURANCE REPORT for the month of February, 1998 Based upon observations taken at 1800 UTC each day Prepared by Chris Fiebrich (chris@mesnet.mesonet.ou.edu) ================================================================================ Note: It was recently discovered that an error occurred while sending this report a couple of weeks ago. Therefore, most of you never received it. I apologize for this delay. February turned out to be another mild month weatherwise. Average 1800 UTC temperatures were about 50 F for the month -- not bad for February. The northern 1/3 of the state was quite dry with most stations there reporting less than 1 inch of accumlated rainfall for the month. This contrasts with many 3+ inch totals observed at the southwest and southeast Oklahoma sites. The monthly averaged fields for February looked quite smooth. They did, however, seem to indicate a slight pressure bias at WEBB and a TS30 bias at A181. 7 T/RH sensors were replaced across the ARS and MESOnetworks after biases were found by on-site meso-comparison tests. The TB10 sensor at MCAL was stolen by a gopher in early February. No arrests have been made at this time. ================================================================================ TAIR (Air Temperature at 1.5 meters): Current t-tkts: #1694 ALVA Temperature fell to -64 C. Added: None Resolved: None TDEW/RELH (RH is measured at 1.5 meters): Current t-tkts: #1669 MADI RH sensor reporting -7999 on 3 occassions. Added: None Resolved: #1690 CENT Test probe showed 7% RH error; replaced. #1691 MCAL Test probe showed 5.4% RH error; replaced. WDIR (Wind Direction at 10 meters): Current t-tkts: None Added: None Resolved: None WSPD (Wind Speed at 10 meters): Current t-tkts: None Added: None Resolved: None PRES/PALT (Sea level Pressure): Current t-tkts: None Added: #1702 WEBB Monthly QA indicates 0.6 - 1.0 mb bias Resolved: None SRAD (Incident Solar Radiation): Current t-tkts: #1695 ALVA values dropping well below 0. Added: None Resolved: None RAIN: Current t-tkts: None Added: None Resolved: None TA9M (Air Temperature at 9 meters): Current t-tkts: None Added: None Resolved: None WS2M (Wind Run at 2 meters): Current t-tkts: None Added: None Resolved: None TS10 (Soil temperature at 10 cm under native sod): Current t-tkts: None Added: None Resolved: #1604 BLAC Replaced to correct suspected warm bias #1679 ARNE Replaced after sudden drop in temp. reported TB10 (Soil temperature at 10 cm under bare soil): Current t-tkts: None Added: None Resolved: #1676 MCAL Replaced after gopher stole probe TS05 (Soil temperature at 5 cm under native sod): Current t-tkts: None Added: None Resolved: None TB05 (Soil temperature at 5 cm under bare soil): Current t-tkts: None Added: None Resolved: #1605 MEDI Old sensor too shallow; replaced TS30 (Soil temperature at 30 cm under native sod): Current t-tkts: None Added: None Resolved: None ------------------------------------------------------------------------------- ARS QA REPORT ------------------------------------------------------------------------------- TAIR (Air Temperature at 1.5 meters): Current t-tkts: None Added: None Resolved: None TDEW/RELH (RH is measured at 1.5 meters): Current t-tkts: None Added: None Resolved: #1659 A181 RH reporting above 100%; replaced #1678 A131 Test probe showed 1.2C Td error; replaced #1681 A146 Test probe showed 1.5C Td error; replaced #1682 A145 Test probe showed 1.8C Td error; replaced #1683 A136 Test probe showed 2.6C Td error; replaced SRAD (Incident Solar Radiation): Current t-tkts: #1606 A123 Monthly plots show about 75 W/m2 too low. Added: None Resolved: #1668 A131 Sensor inspected and tested ok RAIN: Current t-tkts: None Added: None Resolved: #1693 A168 Spider and webs cleaned out TS05 (Soil temperature at 5 cm under native soil): Current t-tkts: None Added: None Resolved: None TS10 (Soil temperature at 10 cm under native sod): Current t-tkts: None Added: None Resolved: None TS15 (Soil temperature at 15 cm under native soil): Current t-tkts: None Added: None Resolved: None TS30 (Soil temperature at 30 cm under native sod): Current t-tkts: None Added: #1701 A181 Long term QA indicates 2-4 C warm bias Resolved: None |
Suggestions: | Users of these data should obtain the detailed quality assurance information from ARM. |
Measurements: | sgp05okmX1.a1: more
sgp05okmX1.00: more sgp15okmX1.a1: more sgp15okmX1.00: more |